Arnab Kundu

অর্ণব কুণ্ডু

I am a 3rd Year PhD student at the Université Paris-Saclay. My thesis defence is on 2nd June 2023. Here is my CV. I am joining the University of Toronto as a Post-Doc in September 2023.

Rough pronunciation of my name:
Ar-nab (or-nob; or as in origin; nob as in 'noble')
Kun-du (coon-do; coon as in 'tycoon'; a hard 'd')

Arnab Kundu

Office: 3D20
Laboratoire de Mathématiques d’Orsay,
Université Paris-Saclay,
Bâtiment 307,
Rue Michel Magat,
91400 Orsay,

Office Number: (+33) 1 69 15 74 13


My interests lie in the fields of Algebraic Geometry and Arithmetic Geometry. Currently, I am thinking about the geometries of schemes over valuation rings.

Here is my arXiv link.


  • Torsors on Smooth Algebras over Valuation Rings, Thesis, in review.

    We show that a generically trivial torsor under a quasi-split reductive group scheme on a smooth algebra over a valuation ring of rank one is trivial.

  • Tilting Correspondences of Perfectoid Rings, J. Ramanujan Math. Soc. 38, No. 1 (2023) 23–32, journal.

  • Purity over Valuation Rings, in preparation.

Below, I list some of the seminars that I am/was co-organising.


Upcoming Travel

1 Stockholm 18-19 Apr
2 Paris 10-21 Jul
3 Ann Arbor 7-11 Aug

I am a teacher at the Institut Universitaire Technologie (IUT), Cachan, France.



Other activities

  • Since January 2021, I am building the website of
    École Parisienne d'Arithmétique et de Géométrie (EPAG).
    The goal is to centralise all relevant informations for PhD students in number theory and algebraic geometry in the Paris region.
  • I am a volunteer for the
    "Accueil International EGMathPS".
    Our objective is to help international students better integrate to Paris-Saclay and France in the context of their studies in mathematics (Master and PhD). So, if you are a Math student in Orsay/IHES/Evry/Versailles/Ecole Polytéchnique/ENS Paris-Saclay and you would like to join our discord channel, feel free to send me an email!
  • In the year 2020-2021, I was a grader of
    Marathon d'Orsay de Mathématiques

Last updated: 30 April 2023 by Arnab Kundu